Category: prominence

Full Disk Feast

H-Alpha Sun - August 2, 2011
H-Alpha Sun - August 2, 2011

This morning everything seemed to be right. The weather was absolutely great, the Sun was more active than I’ve seen so far this year and the seeing was above average. A good day to try sketching a full-disk h-alpha sun for the first time instead of an isolated prominence. First I made a blank disk with a soft white pastel. I took the sketch outside and filled in all the details I could see through the eyepiece of my 70mm solar telescope with white and black pastel pencils. All regions were very active, especially the middle one: it changed its shape within minutes. Sometimes little bright flare-like brightenings appeared and disappeared 2 minutes later. A wonderful sight! It took me one hour (from 08.00 UT – 09.00 UT) to complete the drawing. I scanned the (black&white) sketch and gave it a reddish color with Photoshop.
Object Name Sun
Object Type Star
Location Deventer, The Netherlands
Date August 2, 2011
Media Pastel on black paper

Kind regards,

Roel Weijenberg
www.roelblog.nl

Sun Torch

H-Alpha Prominence
H-Alpha Prominence

Object Type: H-alpha prominence
Location: Deventer, The Netherland
Date: July 15, 2011
Media: Graphite pencil on white paper

On July 15, I made the first sketch through my new 70mm h-alpha solar telescope. The scope showed a lot of detail, but a large prominence on the northwest limb was the most stunning feature. It was large, wide, and it changed shape within minutes. I made two sketches, one at 12.00UT and one 20 minutes later, at 12.20UT. The prom clearly changed shape an structure a bit and the base was much wider. It looked as if the prominence was falling back to the sun!
I sketched with graphite pencil on white paper, inverted the sketch and pulled all the levels to “red”) with Photoshop.

Kind regards,
Roel Weijenberg
www.roelblog.nl

3 June 2011 Sun

Sun - June 3, 2011
Sun - June 3, 2011

Hi,

Sun sketch made on 3 June 2011 at 19:50 – 20:06 UT in Ontario Canada with a Coronado PST Ha single stack. An interesting prom appears in the SSW

The disk image is pre-printed at 16 cm diameter on computer paper and details added with mechanical pencil, scanned into my computer and contrast-adjusted with standard scanner software.

Regards,
Mel R.

Plasma Dancing on the Southwestern Limb

2011 06 30, 1435 UT
Solar h-alpha, SW prominence

PCW Memorial Observatory, Ohio USA – Erika Rix (www.pcwobservatory.com)
Temp: 24.2°C, Humidity 62%, cirrus
S: Wilson 4.5, T: 1/6-3/6, Alt: 38.3 deg, Az: 090.4 deg
DS 60mm Maxscope, LXD75, 21-7mm Zhumell, 57.14x

Sketches created scope-side with black Strathmore Artagain paper, white Conte’ crayon and pencil, Derwent charcoal pencil, black oil pencil

At first glance, this SW prominence only showed a clear view of its northern leading edge and part of its upper arch. To the south, there was a very bright, segmented area of prominence. Transparency was very poor, but on moments of clearing up, I was able to bump up the magnification to show the very light detailed structure of plasma holding it all together. Then yet further to the south, a tall slender area of prominence forked at the tip and its filament reached into the solar disk in three areas, with the northern one being the longest. Again, I could see faint structures of prominence reaching southward from the segmented prominence.

Colors of the Sun

2011 06 01, 1500 UT – 1630 UT
Solar h-alpha, prominences

PCW Memorial Observatory, Ohio USA – Erika Rix, www.pcwobservatory.com
Temp: 32.3°C, Humidity 42%, SE winds 5mph
Seeing: Wilson 4, Transparency: 2/6

DS 60mm Maxscope, LXD75, 21-7mm Zhumell

Sketch created scopeside with black Strathmore Artagain paper, oil pastels

This was my first attempt at creating a color solar sketch with oil pastels. It may have worked better if the pastels weren’t so blunt and the problem of the pastels turning soft from the heat (even though I kept the box from direct sunlight). Still, I was pleasantly surprised at the colors compared to other attempts at using colored pencils or colored pastels for sketching the Sun. With a bit more practice, or if I can find oil pastel pencils), I might actually enjoy using color over my preferred method of monochrome.

The Sun Over Nagykanizsa

Hi!

The data of drawing: 07.Jun.2011.
Telescope : Colorado PST.
Observing Location: Nagykanizsa – Hungary, Canis Maior Sun Observatory
(www.nae.hu)

Today I’ve made a h-alpha sketch through with Colorado PST H-Alpha
telescope. The drawing is made between 8:00 an 10:00 UT from
Nagykanizsa Canis Maior Sun Observatory , using a red pastel pencil on
black paper.

The weather was bad. The sky was cloudy. Sun only 1-3 happened upon lawsuits up.
I was not able to finish a drawing. The clouds did not allow it. I
managed to prepare a digital scheme it redrawing.

This digital drawing preparated GIMP 2.6 programs, based on a pastel sketch.

Thank you for it!

Clear Sky !

Tamas Bognar

http://tamasasztro.blogspot.com
http://tamasfoto.blogspot.com/

skype : bognartamas
msn : bognart@gmail.com

Our Star Animated

Western Prominence

2011 06 01, 1500 UT – 1630 UT
Solar h-alpha, prominences

PCW Memorial Observatory, Ohio USA – Erika Rix, www.pcwobservatory.com
Temp: 32.3°C, Humidity 42%, SE winds 5mph
Seeing: Wilson 4, Transparency: 2/6

DS 60mm Maxscope, LXD75, 21-7mm Zhumell

Sketch created scopeside with black Strathmore Artagain paper, white Conte’ crayon and pencil, Derwent charcoal pencil, black oil pencil

There were six active regions on the Sun, but a western prominence region caught my eye as a possible CME that took place during my observation. If it was simply an erupting prominence, it was the brightest I’ve witnessed as such. I’ve created an animation of my sketch sequence that I recorded during the observation at 5-minute intervals.

Magnetic Fields and Plasma Trees

– Object Name: the Sun
– Object Type: Star
– Location: Lith, the Netherlands
– Date: 7-5-2011
– Media: red pastel pencil, black paper, photoshop

The sky was clear today, so i aimed my new solartelescope at the Sun to see some Solar Flares. There where pretty much of those flares visible today. As you can see on the sketch, three huge flares where visible on the leftcorner of the sun.
Our Sun reaches the Solar Maximum in 2013, so it will become more and more active. This is the time to buy a solartelescope!

– Weather: hot and dry
– Seeing: (very) bad
– Telescope: Coronado P.S.T.

I’m ready for the Solar Maximum!

Rutger Teule
www.rutgerteule.com